Renal Flashcards
Hemolytic Uremic Syndrome (HUS) (5)
Hemolytic anemia
Acute kidney injury (AKI)
Thrombocytopenia
Shiga toxin
E. coli O157
Meds witheld with AKI
DAMN drugs:
Diuretics and Digoxin
ACEi or ARBs (nephroprotective in CKD) & ABX
Metformin/Methotrexate
NSAIDs
AKI stages for creatine
1,2 & 3
1.5-1.9 increase in creatinine → AKI Stage 1
2.0–2.9x increase in creatinine → AKI Stage 2
3x increase in creatinine or more → AKI Stage 3.
current creatinine / baseline creatinine
Definition and Staging AKI (KDIGO Criteria)
Stage 1,2 & 3
Urine Output Criteria
✅ Stage 1: Oliguria for >6 hours
✅ Stage 2: Oliguria for >12 hours
✅ Stage 3: Severe oliguria (>24 hours) or anuria (no urine) for ≥12 hours
Causes of AKI Pre Renal (3)
(DSH)
dehydration
sepsis
heart failure
Causes of AKI (intrinsic) Renal (3)
acute tubular necrosis
glomerulonephritis
nephrotoxins like NSAIDs or ACE inhibitors
i.e. direct kidney damage
Causes of AKI Post-renal
I.e. obstruction
(3)
kidney stones
enlarged prostate
tumors
Key test to rule out obstruction
USS KUB
(post-renal AKI)
Diagnostic criteria in AKI
↑ in Creatinine ≥ 50% in 7 days
Key Mx in AKI (DAMN + other)
Stop DAMN drugs:
Diuretics and Digoxin
ACEi or ARBs
Metformin or Methotrexate
NSAIDs
&
give Fluid rehydration
CKD, how long does to qualify?
> 3 months
eGFR diagnosis for CKD stage 4 & 5
ACR diagnosis for CKD
ACR ≥3 mg/mmol
G1 (eGFR ≥90) means?
evidence of kidney damage, even though the filtration rate is still normal
G5: eGFR <15 means?
(End-Stage Renal Disease - ESRD).
Px with eGFR < 30 , next step?
accelerated referral progression
ACR ≥ 70 means?
Uncontrolled Hypertension
1st Line Tx BP if ACR >30?
ACE/ ARB (ARB if black)
Cause of Anameia
Low Erythropoietin
Ferrous sulfate
Indic for URGENT Acute Dialysis (5)
AEIOU
Acidosis
Electrolytes
Intoxication
Oedema
Uraemia Symptoms
Stage req. for Long term dialysis
CKD Stage 5
catheter name in peritoneal dialysis?
Tenckhoff
options for Haemodyalysis (2)
Tunnelled cuffed catheter (immediate)
Arterio-venous fistula
What is the first-line choice for an AV fistula?
Radio-Cephalic (Wrist Fistula)